Machine for making wooden pegs



UNITED STATES PATENT OFFICE.

THOMAS A. ROBERTSON, OFpGEORGETOWN, DISTRICT OF COLUMBIA.

MACHINE FOR MAKING WOODEN PEGS.

Specification of Letters Patent No. 4,148, dated August 16, 1845.

To all 'whom t may concern Be it known that I, THOMAS A. ROBERT- SON, ofGeorgetownJ District of Columbia, have invented a new and usefulImprovement in Machinery for Making Shoe-Pegs;

Y shall be separated from the rest, that perfecting the whole at oneoperation.

The construction of the machine is as follows for preparing the woodcutting off the proper length, pointing, and splitting: On a suitableframe a, a, are two Standards b, in which the arbor of a circular saw c,runs. In front of this saw there is a gage for gaging the stick to theproper length for a peg when the saw cuts it off. This piece is thenplaced under the pointing cylinder CZ, which is on the same arbor as thesaw. This cylinder d, is grooved around its periphery with triangulargrooves which form on its surface triangular projections all around.These are cut across atright angles which form' them into teeth that cutinto the end of the block above named as it is passed under thecylinder. The block is then again run under this cylinder after beingturned one fourth around so as to make the cutters again groove 1t atright angles and complete the pointing. After this process the block isplaced in the splitting apparatus at the front of the frame at whichpoint there are two fender posts c, e, in an upright position betweenwhich a gate (f) plays up and down carrying a knife (71,) that cuts thepegs; the gate is moved by a crank on a shaft underneath to which it isconnected by a pitman7 the crank shaft being driven by any power. Justbehind the knife there is a fluted roller g, the flutes of which are ofthe same size as the peg points. The block passes under this roller, theflutes taking into points of the pegs. This roller is made to turn thedistance of the width of one peg at each descent of the knife whichbrings a new row under it in front of the knife 7L. There is a row ofshort knives c', z', fastened close to and at right angles with saidknife 77,. These are placed far enough apart to admit a peg betweenthem, these split the row cut off by the knife it, into single pegs andthe operation i`s completed. A more perfect view of the formation of theknife is shown in the detached section/on the drawing. l

That I claim as my invention in the above described machinery for makingpegs is- The combination of the knife 7i., with the short knives z',placed at right angles thereto for splitting the pegs'both ways thewhole being combined with the fluted roller as bei fore specified.

T. A. ROBERTSON. Vitnesses:

J. J. GREENOUGH, J oHN R. SoTHoRoN.

